| 講演要旨(和文) | | 秋田駒ケ岳は秋田−岩手の県境域山脈中の火山の一つである．1970年噴火後のこの山の火山状況を，地球物理学的諸観測により，追跡してきた．本講演では，主として地温と地磁気の観測結果について述べる．1970年火口の近辺は1995年までに殆ど冷却したが，2006年ころから地熱活動は再活性化に転じた．この地熱傾向と調和的な地磁気変化が観測された． |
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| | 講演要旨(英文) | | Akita-Komagatake is one of volcanoes in the boundary range between Akita and Iwate prefectures. Volcanic condition of this volcano after the eruption of 1970 has been monitored by geophysical methods. Results of geothermal and geomagnetic observations are mainly described in this paper. The neighboring area of the 1970-crater was almost cooled until 1995. Recently, however, since almost 2006 the geothermal activity has changed to tendency of reactivation. Variation of geomagnetic field conformable to the geothermal tendency was observed. |
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